摘要
本文以He-Ne 632.8nm激光为写入光,在非同时读出条件下,实验研究了e偏振光写入Cr:KNSBN晶体两波耦合过程中信号光和泵浦光的透射光强随时间的变化,以及单束泵浦光的透射光强随时间的变化,实验结果表明,泵浦光损失的能量几乎全部转移到了信号光方向,基本不存在散射光;并以二值化图像作为物在晶体内进行了图像存储实验,其再现图像清晰,信噪比高,没有观察到扇形光的影响。
By using the extraordinary polarized He-Ne 632.8nm laser beam in the Cr： KNSBN crystal, me transmitted intensity of pump beam and signal beam as a function of time in the two-wave coupling process were experimentally investigated, and the transmitted intensity of pump beam as a function of time was also investigated when the signal beam was shutted. It is shown that the lost pump beam energy was totally transferred into the signal beam without scattering beam. An image storage experiment of a binary image was performed, and a clear reconstructed image with high signal-to-noise ratio and without scattering beam impacting was obtained.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2006年第4期812-815,共4页
Journal of Synthetic Crystals
基金
河北省科技厅(No.32135104)资助项目
